with open(r"C:\Users\Big Watermelon\Desktop\pythonFile\file1.txt","r",encoding="utf-8") as file1:
    aa = file1.read()
    print(aa)

with open(r"C:\Users\Big Watermelon\Desktop\pythonFile\file2.txt","w",encoding="utf-8") as file2:
    bb = file2.write(aa)
    print(bb)